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DiKsa [7]
3 years ago
15

Extension would occur when the joint allows one bone to:

Biology
1 answer:
Keith_Richards [23]3 years ago
7 0
I’m pretty sure it’s B!! please correct me if i’m wrong.
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Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?
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Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?

a. nondepolarizing

b. depolarizing

c. antagonizing

d. repolarizing

Answer:

a. nondepolarizing

Explanation:

As the nerve impulse arrives, the synaptic end bulbs of the motor neurons release acetylcholine in the synapse. Acetylcholine binds to its receptors present at the motor endplate. This results in the opening of an ion channel in the ACh receptor to allow the movement of the Na+ into the cell. This makes the inside of the muscle fiber more positively charged, that is, depolarized.

Depolarization triggers a muscle action potential. Drugs or chemicals that paralyze skeletal muscle by competitive inhibition of acetylcholine at muscle receptor sites are called non-depolarizing as they do not allow the acetylcholine to facilitate the depolarization of the muscle fiber.

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The exchange of nutrients and oxygen between body and blood occurs in the..?
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Why is blood type considerd a form of codominace​
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HEY I THINK THIS WILL HELP?

<u>they inherited a recessive O allele from both parents. The A and B alleles are </u><u>codominant</u>.<u> Therefore, if an A is inherited from one parent and a B from the other, the phenotype will be AB. Agglutination tests will show that these individuals have the characteristics of both type A and type B blood.</u>

<u />

<u />

<em>have a good day:)</em>

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2 years ago
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